android-paging

问题 I'm using Dagger2. I will be injecting CompositeDisposable in ViewModel through @Inject constructor(private val compositeDisposable: CompositeDisposable) And my screen would also be using Android Pagination library and inside PageKeyedDataSource class I would be adding every network call into compositeDisposable using it's .add(diposable) . I also would be adding CompositeDisposable in PageKeyedDataSource constructor through Dagger graph. Is there any way that CompositeDisposable in ViewModel

问题 I wanted to query firestore database with the timestamp recently posted For ex: I have collection of posts Indexed with timestamp ascending and descending order when the user opens the feed it will show the today's date(timestamp Today Descending ) Posts. when the user scrolls it fetches next 3 ids and so on and ends with last item of today.But without ending with last item post of today I wanted to show the next day posts and so on for last seven days so the recycler view will be endless

问题 I am using Android Pagination Library... It's working in a weird way - Items keep loading infinitely, there is no stop even when there are no more data to load. For example, I have 2 Items to load, instead of loading just the 2 items and stop loading, It keeps loading the 2 items repeatedly... Here is a gif of what I am facing. First here is my repository CommentDataSource.java Note - when I change the value of " PAGE_SIZE " to " 1 ", It seems to work but the whole purpose of the pagination

问题 I am using Android Pagination Library... It's working in a weird way - Items keep loading infinitely, there is no stop even when there are no more data to load. For example, I have 2 Items to load, instead of loading just the 2 items and stop loading, It keeps loading the 2 items repeatedly... Here is a gif of what I am facing. First here is my repository CommentDataSource.java Note - when I change the value of " PAGE_SIZE " to " 1 ", It seems to work but the whole purpose of the pagination

问题 I have a search fragment that shows list of searched items. if user type something, I pass that string to url as new query parameter and get new list using paging 3 library. first solution is: //viewModel lateinit var postListUrl: String val postList: Flow<PagingData<Post>> = Pager(PagingConfig(pageSize = 20)) { PostPagingSource(postRepository, postListUrl) }.flow.cachedIn(viewModelScope) //fragment fun showPostList(url: String) { postListAdapter.submitData(lifecycle, PagingData.empty())

问题 I am trying to understand what the initialKey does in the Pager constructor, but I cannot find any sort of explanation, not even in the official documentation: https://developer.android.com/reference/kotlin/androidx/paging/Pager#%3Cinit%3E(androidx.paging.PagingConfig,%20androidx.paging.Pager.Key,%20androidx.paging.RemoteMediator,%20kotlin.Function0) Can anyone explain what it does or how it works and how to use it? 回答1: After testing I believe the initialKey param is meant to indicate a

问题 i have a recyclerview item ,it contains an another recyclerview to show image list: <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v7.widget.RecyclerView android:id="@+id/imageRv" android:layout_width="0dp" android:layout_height="wrap_content" /> if i use paging in ViewHolder,i have to invoke like this class GankViewHolder(parent: View) :

问题 I have a search fragment that shows list of searched items. if user type something, I pass that string to url as new query parameter and get new list using paging 3 library. first solution is: //viewModel lateinit var postListUrl: String val postList: Flow<PagingData<Post>> = Pager(PagingConfig(pageSize = 20)) { PostPagingSource(postRepository, postListUrl) }.flow.cachedIn(viewModelScope) //fragment fun showPostList(url: String) { postListAdapter.submitData(lifecycle, PagingData.empty())

问题 I have a RecyclerView that has a PagedListAdapter . When I put the RecyclerView inside NestedScrollView the PagedList cannot compute the end of the list so start requests continuous burst for new data. The main question is How should I use PagedListAdapter inside NestedScrollView ? 回答1: I had a similar problem, and it seems to be caused by the fact that NestedScrollView provides infinite dimensions and so RecyclerView will layout all its children. so I looked on github and found an

问题 I have a RecyclerView that has a PagedListAdapter . When I put the RecyclerView inside NestedScrollView the PagedList cannot compute the end of the list so start requests continuous burst for new data. The main question is How should I use PagedListAdapter inside NestedScrollView ? 回答1: I had a similar problem, and it seems to be caused by the fact that NestedScrollView provides infinite dimensions and so RecyclerView will layout all its children. so I looked on github and found an